Question

【題目】 Do you often listen to music at loud volumes（音量）?【1】 Over 1 billion young people are at risk of hearing loss because of listening to loud noise for long periods of time. Listening to music or watching a TV show at loud volumes can harm your hearing.

【2】 It is not safe to listen to sounds that are louder than 85 dB(分貝) for eight hours or 100 dB for 15 minutes. The sound of a busy road is about 85 dB and the sound of a rock concert can be about 100dB.

Loud noise is harmful to the inner(內(nèi)的) ear. Most of us are born with about 16,000 hair cells(細(xì)胞) in our inner ears. These cells notice sounds. However, listening to loud noise for a long time can make these cells work too hard and cause some of them to die. 【3】 Once this happens, it’s hard to get your hearing back.

Some people might think that their music isn’t all that loud. 【4】 For example, if you are in a noisy place like the subway, you might turn up your music too loud without realizing it. Later, when you listen to it at the same volume in a quiet place, you might feel uncomfortable.

The “safe level” for most sound is below 80 dB for up to 40 hours a week. A level of 80 dB is about equal to (相當(dāng)于) the noise of a subway.

Here is some advice on safe listening. 【5】 They do a better job of stopping outside noise, so you can listen at a lower volume. Don’t listen to loud music on your headphones for a long time. Follow the 60:60 rule: listen to music at 60 percent of your headphones’ maximum(最大的) volume for no more than 60 minutes a day.

A.This is what causes hearing loss.

B.But this can depend on where you are.

C.The United Nations has standards for safe listening.

D.Over-the-ear headphones are better than in-ear ones.

E.You should know that this habit is bad for your hearing.

Answer 1

【答案】

【1】E

【2】C

【3】A

【4】B

【5】D

【解析】

本文主要講述了聽(tīng)大音量音樂(lè)的習(xí)慣對(duì)聽(tīng)力有害。并告訴我們聽(tīng)力受損的原因。

【1】句意：你應(yīng)該知道這個(gè)習(xí)慣對(duì)你的聽(tīng)力不好。

根據(jù)“Listening to music or watching a TV show at loud volumes can harm your hearing.”可知，聽(tīng)大音量音樂(lè)或看電視節(jié)目會(huì)損害你的聽(tīng)力，此處表示“你應(yīng)該知道這個(gè)習(xí)慣對(duì)你的聽(tīng)力不好”的含義。結(jié)合選項(xiàng)，故選E。

【2】句意：聯(lián)合國(guó)有安全傾聽(tīng)的標(biāo)準(zhǔn)。

根據(jù)后文“It is not safe to listen to sounds that are louder than 85 dB(分貝) for eight hours or 100 dB for 15 minutes.”可知，聽(tīng)高于85分貝8小時(shí)或100分貝15分鐘是不安全的，所以此處內(nèi)容與聽(tīng)聲音的標(biāo)準(zhǔn)有關(guān)。結(jié)合選項(xiàng)，故選C。

【3】句意：這就是導(dǎo)致聽(tīng)力損失的原因。

根據(jù)“Most of us are born with about 16,000 hair cells(細(xì)胞) in our inner ears…can make these cells work too hard and cause some of them to die.”可知，此處在解釋聽(tīng)力受損的原因。結(jié)合選項(xiàng)，故選A。

【4】句意：但這取決于你在哪里。

根據(jù)后文“For example, if you are in a noisy place like the subway…when you listen to it at the same volume in a quiet place, you might feel uncomfortable.”可知，此處與不同的地方有關(guān)。結(jié)合選項(xiàng)，故選B。

【5】句意：外掛式耳機(jī)比入耳式耳機(jī)更好。

根據(jù)后文“Don’t listen to loud music on your headphones for a long time.”可知，此處內(nèi)容與耳機(jī)有關(guān)。結(jié)合選項(xiàng)，故選D。